Deodorant comprising metal oxide-carrying activated carbon

Details Deodorant comprising metal oxide-carrying activated carbon Deodorant comprising metal oxide-carrying activated carbon

1994-09-14

1999-09-07

Harrison, Robert H.

Drug, bio-affecting and body treating compositions

Deodorants

95135, 95141, 502400, 502401, 502416, 502417, 502427, 502432, 502517, A61L 900, A61L 916

Patent

active

059483989

ABSTRACT:
A metal oxide-carrying activated carbon having an oxidation catalytic activity comprises a treated activated carbon obtained by carbonizing a carbon material, activating the obtained carbon with an activating gas comprising carbon dioxide and water vapor, said activating gas containing not more than 15% by volume of water vapor, and then cooling the activated carbon down to a temperature of not more than 300.degree. C. under the same atmosphere; and, carried thereon, 0.1 to 20% by weight as converted into metal of an oxide of at least one metal selected from the group consisting of iron, chromium, nickel, cobalt, manganese, zinc, copper, magnesium and calcium. A deodorant is obtained by adding 1 to 50 parts by weight of a plastic powder having an average particle diameter of 1 to 50 .mu.m to 100 parts by weight of the above metal oxide-carrying activated carbon. The above. activated carbon and deodorant exhibiting high decomposing functions for foul-odor gases such as methylmercaptan and trimethylamine and are hence usable as deodorants; they are also suitable as deodorants for refrigerators, since they have particularly high decomposing activities for these gases in low concentrations and at low temperatures.

REFERENCES:
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patent: 5183656 (1993-02-01), Uesaka et al.
patent: 5238899 (1993-08-01), Kadowaki et al.
patent: 5288306 (1994-02-01), Aibe et al.
Hassler, John W. Active Carbon. Brooklyn, N.Y., Chemical Publishing Co., Inc., 1951. pp. 9, 12-17, 21, 28, 29, 83140-143, 356 and 366.

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